Road Stream Crossing Site AUS_OS015
Au Sable River Watershed, Tributary of East Branch of Big Creek
Fire Tower Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.74296
, -84.35388
T27N
R01E
Sec 7
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 13.7729 tons/year
Severity: Severe
Year Inventoried: 2013
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 30 ft.
, Width 1.4 ft.
, Height 1.4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 5 ft.
Wetted Width: 1 ft.
Water Velocity: 0 ft./sec.
(Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.9 ft.
Slope: 1:1
Downstream
Fill Depth: 5 ft.
Slope: 1:1
Approaches
Left Approach
Length: 415 ft.
Slope: More Than 10%
Vegetation: Heavy
LS Factor: 4.039
Erosion: 9.2343 tons/year
Right Approach
Length: 250 ft.
Slope: More Than 10%
Vegetation: Heavy
LS Factor: 3.295
Erosion: 4.5386 tons/year
Erosion Information
Total Erosion at Crossing: 13.7729 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0.5
Fish Passage is an area of concern for this site.
Flow is halted at culvert
A future visit to this site is recommended. Realign culvert to return natural stream flow
These non-native species were observerd at this site: Canada Thistle, Spotted Knapweed, Ox-Eye Daisy